stearns



(No Model.) V G. N. STEARNS, DGOd.

E. G. STEARNS, D, A. STEARNS and A. MEAD, Executors.

SAW ULAMP. I

No. 288,376. Patented Nov; 13, 1.883.

in i

a 5 Be it known that I, GEORGE N. STEARNS, of

' UNITED- STATES PATENT OFFICE I .cnonen nsrnnnns, on SYRACUSE, N. Y.; EDWARD c. sTEARns, DELILAH A. j

STEARNS, AND Avis MEAD, EXECUTORS or SAID STEARNS, DECEASED. M

SAW- LA M P.

SPECIFICATION forming part of Letters Patent No. 288,376, dated November 13, 1883.

To aZZ whom it may concern:

' "Syracuse, in the county of Onondaga, in the State of NewYork, have invented new and useful Improvements in Saw-Vises, of which the following, taken in connection with the accompanying drawings, is a full, clear, and exelevation of my improved saw-vise,showing act description. 7

This invention consists in a novel construe tion of a saw-vise designed to prevent vibrations of the saw during the operation of filing the same, and to afford greater convenience to the operator using the vise.

The invention is fullyillustrated in the an nexed drawings, wherein Figure 1 is a front the lever in position for unclamping the jaws.

Fig. 2 isa side view of the same'with thejaws clamped or closed; Fig. 3, a top view withthe 2O I detached plan View of the lever by means of which the two jaws are drawn together, and

saw clamped between the jaws. Fig. 4 is a Fig. 5 is a detached view of the link which I or from the operat'or,so that when the saw is 4 I front of the cutting-edge, and thus enable the of the file on the saw-tooth. The jaw A is sea cured in the aforesaid position by means of-a f said set-screw engaging the under side of the table or bench, upon which the jaw rests, by

connects the aforesaid lever with the movable 'aw.

A denotes the stationary jaw, which is sus- 1 tained in its position by two pendent arms or pose hereinafter explained, and are united at shanks, SS, which are connected, respectively, to the two extremities of the jaw A, for the pur their lower ends. From the back of each of the shanks S projects an upwardly-inclined supporting-shoulder, B, by means of which the vise rests on the top ,edgeof the table or bench, to which it is to be attached. The inclination of said shoulder causes the jaw to lean rearward applied to said jaw the light will fall onto the operator to observe more closely the progress set-screw, s, inserted througha rearward projection, d, on the base of the jaw-shanks S,

the shoulder B, before described.

Fromthe front of the, baseof the jaw-shanks Application filed May 3,1882. (No model.)

E of the movable jaw D, to which it is attached at the center thereof: The said movable jaw is operated by means of a lever, c, which is of a U shape, as best seen in Figs. 1 and 4 of the drawings, and is provided onthe exterior of its extremities with trunnions e e, by which it is hung in journal-bearings a aon the base of the shanks S of the stationary j ELW'A. p

. Alink or strap, b, connects the lower ex tremity of the shank E of the movable jaw with the lever c intermediately between the trunnions e and the free end of the said lever, the bearings a a, on which said trunnions rest, serving as a fulcrum for the lever, an upward pressure on the freeend of which'latter throws the base of the shank E outward from the base drawings. In clamping a saw-blade between a jaw held rigidly at its extremities and a jaw sustained solely at the center, as shown in Fig. 3 of the drawings, said blade receives a pressure at the ends of the said jaws, which effectually prevents the vibration of the sawblade during the process. of filing its teeth.

In order to admit of taking up the lost motion of the vise incident to the wear of the joints, I provide the link I) with two or more pin, which connects said strap with the lever c.

Having described my invention, what I claim as new, and desire to secure by Letters Patent,

'1. The combinationof the jaw A, having shanks S, provided at their base with journalbearings a a, and with the rigid upward-projecting arms 0 O, the jaw D, having the shank E, hinged on the arms 0 O, the lever 0, turning in bearings a a, and the link I), connected,

respectively, with the lower extremity of the i shank E, and with the lever c intermediately between the fulcrum and power of said lever,

substantially'as described and shown.

2. The combination, with the jaw A and its cast in one piece, the jaw D, having the shank my name and affixed my seal, in the presence 10 E hinged between the arms 0 O, the lever c of of two attesting witnesses, at Syracuse, in the U shape, and provided onits extremities with county of Onondaga, in the State of New York, trunnions e e, hung in the bearings a a, andthe this 16th day of March, 1882.

5 link b, connected with the lower extremity of the shank E, and with the lever a between the GEORGE STEARNS' two arms thereof, substantially as described Vitnesses: and shown. C. H. DUELL,

In testimony whereof I have hereunto signed WM. 0. RAYMOND. 

